Mineral Evolution Database

Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.

Mineral locality data provided by mindat.org

The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.

Locality Name:
Gwernavalou Quarry, Trémargat, Côtes-d'Armor, Brittany, France

mindat Locality ID: 42091
mindat URL: http://www.mindat.org/loc-42091.html

Tectonic Settings:

Total number of sublocalities beneath "Gwernavalou Quarry, Trémargat, Côtes-d'Armor, Brittany, France": 0
Total number of bottom-level sublocalities: 0

Latitude: 0°0'0"N
Longitude: 0°0'0"E
Decimal Degree (lat, lon): 0,0

A	This mineral is Anthropogenic.
G	This mineral is directly dated.
B	This mineral is reported as having this age.
Y	This mineral is using an age reported as an element mineralization period.
O	This mineral is using an age calculated from all data at the locality.
R	The age displayed for this mineral originates from a different, non-child locality.
P	The age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
	This mineral's age has not yet been recorded.

Amorphous	Autunite	Beryl	Clay	Feldspar	Mica	None	Not in a structural group	Phenakite	Pyroxene
Quartz	Rutile	Scheelite	Titanite

Albite ()*	Autunite ()*	Bavenite ()*	Bazzite ()*	Bertrandite ()*
Beryl ()*	Muscovite ()*	Opal ()*	Orthoclase ()*	Phenakite ()*
Quartz ()*	Rutile ()*	Scheelite ()*	Spodumene ()*	Titanite ()*
Torbernite ()*

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Al Be Ca Cu Fe H K Li Mg Na O P Sc Si Ti U W

Elements from minerals reported directly at this locality: Al Be Ca Cu Fe H K Li Mg Na O P Sc Si Ti U W

Structural Groups for minerals in this locality:
Amorphous Autunite Beryl Clay Feldspar Mica None Not in a structural group Phenakite Pyroxene
Quartz Rutile Scheelite Titanite

16 IMA Minerals at location:

Mineral name	Structural Groups	IMA Formula	# of localities containing mineral
Albite ()*	Feldspar	Na(AlSi₃O₈)	8803
Autunite ()*	Autunite	Ca(UO₂)₂(PO₄)₂·10-12H₂O	1272
Bavenite ()*	None	Ca₄Be_2+xAl_2-xSi₉O_26-x(OH)_2+x (x = 0 to 1)	255
Bazzite ()*	Beryl	Be₃(Sc,Fe³⁺,Mg)₂Si₆O₁₈·Na_0.32·nH₂O	51
Bertrandite ()*	Not in a structural group	Be₄Si₂O₇(OH)₂	606
Beryl ()*	Beryl	Be₃Al₂Si₆O₁₈	4286
Muscovite ()*	Mica Clay	KAl₂(Si₃Al)O₁₀(OH)₂	17380
Opal ()*	Amorphous	SiO₂·nH₂O	2994
Orthoclase ()*	Feldspar	K(AlSi₃O₈)	2349
Phenakite ()*	Phenakite	Be₂(SiO₄)	326
Quartz ()*	Quartz	SiO₂	61156
Rutile ()*	Rutile	TiO₂	5614
Scheelite ()*	Scheelite	Ca(WO₄)	4894
Spodumene ()*	Pyroxene	LiAlSi₂O₆	688
Titanite ()*	Titanite	CaTi(SiO₄)O	4899
Torbernite ()*	None	Cu(UO₂)₂(PO₄)₂·12H₂O	1059

No ages have been assigned to this locality yet.

Sample	Source Locality	Reference URL

All locality data graciously provided by mindat.org

All age data...